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1 | /*++ |
2 | |
3 | Copyright (c) 2004 - 2006, Intel Corporation |
4 | All rights reserved. This program and the accompanying materials |
5 | are licensed and made available under the terms and conditions of the BSD License |
6 | which accompanies this distribution. The full text of the license may be found at |
7 | http://opensource.org/licenses/bsd-license.php |
8 | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. |
11 | |
12 | Module Name: |
13 | |
14 | UnixThunk.c |
15 | |
16 | Abstract: |
17 | |
18 | Since the SEC is the only program in our emulation we |
19 | must use a Tiano mechanism to export APIs to other modules. |
20 | This is the role of the EFI_UNIX_THUNK_PROTOCOL. |
21 | |
22 | The mUnixThunkTable exists so that a change to EFI_UNIX_THUNK_PROTOCOL |
23 | will cause an error in initializing the array if all the member functions |
24 | are not added. It looks like adding a element to end and not initializing |
25 | it may cause the table to be initaliized with the members at the end being |
26 | set to zero. This is bad as jumping to zero will crash. |
27 | |
28 | |
29 | gUnix is a a public exported global that contains the initialized |
30 | data. |
31 | |
32 | --*/ |
33 | |
34 | #include "SecMain.h" |
c9093a06 |
35 | #include "Library/UnixLib.h" |
36 | #include <sys/time.h> |
37 | #include <time.h> |
38 | #include <signal.h> |
39 | #include <string.h> |
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40 | #include <stdlib.h> |
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41 | #include <termio.h> |
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42 | |
43 | static int settimer_initialized; |
44 | static struct timeval settimer_timeval; |
45 | static void (*settimer_callback)(UINT64 delta); |
46 | |
47 | static void |
48 | settimer_handler (int sig) |
49 | { |
50 | struct timeval timeval; |
51 | UINT64 delta; |
52 | |
53 | gettimeofday (&timeval, NULL); |
54 | delta = ((UINT64)timeval.tv_sec * 1000) + (timeval.tv_usec / 1000) |
55 | - ((UINT64)settimer_timeval.tv_sec * 1000) |
56 | - (settimer_timeval.tv_usec / 1000); |
57 | settimer_timeval = timeval; |
58 | if (settimer_callback) |
59 | (*settimer_callback)(delta); |
60 | } |
61 | |
62 | static |
63 | VOID |
64 | SetTimer (UINT64 PeriodMs, VOID (*CallBack)(UINT64 DeltaMs)) |
65 | { |
66 | struct itimerval timerval; |
67 | |
68 | if (!settimer_initialized) { |
69 | struct sigaction act; |
70 | |
71 | settimer_initialized = 1; |
72 | act.sa_handler = settimer_handler; |
73 | act.sa_flags = 0; |
74 | sigemptyset (&act.sa_mask); |
75 | if (sigaction (SIGALRM, &act, NULL) != 0) { |
76 | printf ("SetTimer: sigaction error %s\n", strerror (errno)); |
77 | } |
78 | if (gettimeofday (&settimer_timeval, NULL) != 0) { |
79 | printf ("SetTimer: gettimeofday error %s\n", strerror (errno)); |
80 | } |
81 | } |
82 | timerval.it_value.tv_sec = PeriodMs / 1000; |
83 | timerval.it_value.tv_usec = (PeriodMs % 1000) * 1000; |
84 | timerval.it_value.tv_sec = PeriodMs / 1000; |
85 | timerval.it_interval = timerval.it_value; |
86 | |
87 | if (setitimer (ITIMER_REAL, &timerval, NULL) != 0) { |
88 | printf ("SetTimer: setitimer error %s\n", strerror (errno)); |
89 | } |
90 | settimer_callback = CallBack; |
91 | } |
92 | |
8ba2f441 |
93 | void |
94 | msSleep (unsigned long Milliseconds) |
95 | { |
96 | struct timespec ts; |
97 | |
98 | ts.tv_sec = Milliseconds / 1000; |
99 | ts.tv_nsec = (Milliseconds % 1000) * 1000000; |
100 | |
101 | while (nanosleep (&ts, &ts) != 0 && errno == EINTR) |
102 | ; |
103 | } |
104 | |
c9093a06 |
105 | void |
106 | GetLocalTime (EFI_TIME *Time) |
107 | { |
108 | struct tm *tm; |
109 | time_t t; |
110 | |
111 | t = time (NULL); |
112 | tm = localtime (&t); |
113 | |
114 | Time->Year = 1900 + tm->tm_year; |
115 | Time->Month = tm->tm_mon; |
116 | Time->Day = tm->tm_mday; |
117 | Time->Hour = tm->tm_hour; |
118 | Time->Minute = tm->tm_min; |
119 | Time->Second = tm->tm_sec; |
120 | Time->Nanosecond = 0; |
121 | Time->TimeZone = timezone; |
122 | Time->Daylight = (daylight ? EFI_TIME_ADJUST_DAYLIGHT : 0) |
123 | | (tm->tm_isdst > 0 ? EFI_TIME_IN_DAYLIGHT : 0); |
124 | } |
125 | |
c9093a06 |
126 | static void |
127 | TzSet (void) |
128 | { |
129 | static int done = 0; |
130 | if (!done) { |
131 | tzset (); |
132 | done = 1; |
133 | } |
134 | } |
135 | |
136 | long |
137 | GetTimeZone(void) |
138 | { |
139 | TzSet (); |
140 | return timezone; |
141 | } |
142 | |
143 | int |
144 | GetDayLight(void) |
145 | { |
146 | TzSet (); |
147 | return daylight; |
148 | } |
149 | |
150 | int |
151 | GetErrno(void) |
152 | { |
153 | return errno; |
154 | } |
155 | |
156 | extern EFI_STATUS |
8ef571df |
157 | UgaCreate(struct _EFI_UNIX_UGA_IO_PROTOCOL **UgaIo, CONST CHAR16 *Title); |
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158 | |
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159 | EFI_UNIX_THUNK_PROTOCOL mUnixThunkTable = { |
160 | EFI_UNIX_THUNK_PROTOCOL_SIGNATURE, |
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161 | msSleep, /* Sleep */ |
162 | exit, /* Exit */ |
163 | SetTimer, |
164 | GetLocalTime, |
165 | gmtime, |
166 | GetTimeZone, |
167 | GetDayLight, |
168 | (UnixPoll)poll, |
169 | (UnixRead)read, |
170 | (UnixWrite)write, |
171 | getenv, |
172 | (UnixOpen)open, |
173 | lseek, |
174 | ftruncate, |
175 | close, |
176 | mkdir, |
177 | rmdir, |
178 | unlink, |
179 | GetErrno, |
180 | opendir, |
181 | rewinddir, |
182 | readdir, |
183 | closedir, |
184 | stat, |
185 | statfs, |
186 | rename, |
187 | mktime, |
188 | fsync, |
189 | chmod, |
190 | utime, |
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191 | tcflush, |
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192 | UgaCreate, |
193 | perror, |
194 | ioctl, |
195 | fcntl, |
196 | cfsetispeed, |
197 | cfsetospeed, |
198 | tcgetattr, |
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199 | tcsetattr |
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200 | }; |
201 | |
202 | |
203 | EFI_UNIX_THUNK_PROTOCOL *gUnix = &mUnixThunkTable; |